Hot-aib



D. HANDELAN.

HOT AIR HEATING SYSTEM.

APPLICATION FILED OCT. 31, 191-7.

Patented Apr. 13, 1920.

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DANIEL HANDELAN, OF ABERDEEN, SG'UTEI DAKOTA.

HOT-AIR HEATING srsrnnr.

' Specification of Letters Patent.

Patented Apr. 13,1920.

Application filed October 31, 191?. Serial No. 199,553.

compact and novel arrangement. of hot-' air conduits such that the body of hot air will travelthe greatest available distance vertically, being "discharged through laterals at the top'of the room, preferably downwardly through the ceiling. This arrangement of hot-air delivery pipes is combined with a system of withdrawal pipes of relatively large size located adjacent the floors of the rooms. By this means the air in the house is caused rapidly to circulate through the rooms and a furnace chamber and back through the delivery conduits andinto the rooms. This rapid circulation insures a withdrawal of the largest amount of heat from the radiation surface of the furnace walls so that these surfaces are kept relatively cool and the air is delivered to the rooms at a moderate temperature, even with a very hot fire, the heating effect being brought about by rapid circulation of the air rather than the discharge of very hot air into the room with its injurious effect upon the furniture and the occupants.

The full objects and advantages of my invention will appear in connection with the detailed description thereof and are par ticularly pointed out in the claims.

In the drawings, illustrating the application of my invention in one form,

The single figure represents a cross-sectional view of a dwelling house showing the arrangement in reference to floors of the delivery and return pipes of my system.

As illustrated, the outside walls 10 of a house have between them supported in the usual way a basement floor 11, a first floor 12, second floor 13, and an attic floor 14, above which is the roof 15. A chimney 16 extends from the basement through the several floors and the roof, preferably at a central part of the house. Located adja cent the chimney in the central part of the basement is a hot-air furnace 17 of usual construction which communicates with the chimney 16 through a smoke-pipe 18. Ex-

tending from the top center of the air chamber of the furnace 17 is a central de livery pipe 19 which passes through the first floor 12, the second floor l3 and the attic floor lain a vertical line. Pipe 19 is contractedat 20, where it passesthrough-the second floor 13, at which point laterals 21, 22, 23 extend along the floor between the joists, discharging downwardly at the ceiling of the first-floor rooms through registers 24, 25, 26 controlled by dampers 2'? which are operated by suitable chains 28. Other laterals 29,30 and 31 extend from the diminished upper end of'the central pipe 19. As shown, these laterals are above the attic floor and discharge downwardly through said floor and the ceiling of the second-story rooms by branches 32, 33 and 3d controlled by dampers 35 which are operative by suitable chains 36. A central damper 37 at the upper end of the vertical pipe 19 is controlled by chain 38 and is adapted to be operated so that more or less hot air may be diverted into either of the pipes 29 or 30 according to the side of the building subject to wind pressure.

From this arrangement it will be seen that hot air from the furnace 17 passes directly upward from the hot-air chamber to the highest possible point for delivery to both the first floor and the second floor. This results in a high velocity of air travel which is not materially diminished by the short travel through the laterals, since these laterals everywhere, for a given floor, are in the same plane and may be made relatively short. Return-pipes 40, 1-1 connect with the lower part of the hot-air chamber and the furnace l7 and communicate through laterals l2 and 4:3 with vertical return-pipes 44, 45, 46 and d7 located near the outside walls of the house, and preferably within or adjacent central partition walls. Return-floor registers L8 and 4:9 communicate with the pipes 15 and 47 at the floor of the second-story rooms, and similar return-floor registers 50 and 51 communicate with the pipes 44 and 46 at the floor level of the first floor. A fresh air-pipe 52 controlled by a damper 53 communicates at 5% with the lateral 13 so as to permit fresh air to be introduced into the furnace chamber as desired.

The return pipes, it will be noted, are of relatively large size, as are the registers opening into them, thus permitting free and rapid travel of the return-air to the hot-air chamber of the furnace. By this means, in combination with the central delivery pipe and its lateral discharge at the highest point possible of the rooms of any floor, the air is caused to circulate through the rooms with very great rapidity, thus taking heat from the radiating members of the furnace with corresponding rapidity and warming the rooms of the house with out the use of very hot air.

I claim:

1. A hot air heating system for buildings comprising a centrally located furnace and hot air chamber therein, a vertical delivery pipe extending from said hot air chamber through all of the floors and ceilings of the building to be heated, laterally extended discharge pipes leading from said vertical pipe, the outer ends of said lateral pipes being turned downwardly through the ceilings to deliver hot air at the highest point in the rooms, and return flow pipes of relatively large size having withdrawal openings located at the floors of the various rooms, said withdrawal pipes being positioned adjacent the outside walls of the building.

2. A hot-air heating system for buildings comprising a furnace located at the lower central point of the building, a Vertical delivery pipe extending directly upward from the furnace through all of the floors and ceilings of the building, said pipe being reduced in size above intermediate floors, discharge pipes leading from said vertical pipes immediately above the ceilings of the rooms, the outer ends of said lateral pipes being turned downwardly through the ceilings and flush therewith to deliver hot air at the highest point in the rooms, and return flow pipes leading from withdrawal openings located at the floors of the various rooms.

In testimony whereof I hereunto afiix my signature.

DANIEL HANDELAN. 

